/* Copyright (c) 2010, Carl Burch. License information is located in the
 * com.cburch.logisim.Main source code and at www.cburch.com/logisim/. */

package com.cburch.logisim.gui.main;

import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Component;
import java.awt.Composite;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;

import javax.swing.Icon;

import com.cburch.draw.toolbar.ToolbarItem;
import com.cburch.logisim.gui.menu.LogisimMenuItem;
import com.cburch.logisim.util.Icons;

class LogisimToolbarItem implements ToolbarItem {
    private MenuListener menu;
    private Icon icon;
    private LogisimMenuItem action;
    private String toolTip;

    public LogisimToolbarItem(MenuListener menu, String iconName,
            LogisimMenuItem action, String toolTip) {
        this.menu = menu;
        this.icon = Icons.getIcon(iconName);
        this.action = action;
        this.toolTip = toolTip;
    }

    public void setIcon(String iconName) {
        this.icon = Icons.getIcon(iconName);
    }

    public void setToolTip(String toolTip) {
        this.toolTip = toolTip;
    }

    public void doAction() {
        if (menu != null && menu.isEnabled(action)) {
            menu.doAction(action);
        }
    }

    @Override
    public boolean isSelectable() {
        return menu != null && menu.isEnabled(action);
    }

    @Override
    public void paintIcon(Component destination, Graphics g) {
        if (!isSelectable() && g instanceof Graphics2D) {
            Composite c = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.3f);
            ((Graphics2D) g).setComposite(c);
        }

        if (icon == null) {
            g.setColor(new Color(255, 128, 128));
            g.fillRect(4, 4, 8, 8);
            g.setColor(Color.BLACK);
            g.drawLine(4, 4, 12, 12);
            g.drawLine(4, 12, 12, 4);
            g.drawRect(4, 4, 8, 8);
        } else {
            icon.paintIcon(destination, g, 0, 1);
        }
    }

    @Override
    public String getToolTip() {
        if (toolTip != null) {
            return toolTip.toString();
        } else {
            return null;
        }
    }

    @Override
    public Dimension getDimension(Object orientation) {
        if (icon == null) {
            return new Dimension(16, 16);
        } else {
            int w = icon.getIconWidth();
            int h = icon.getIconHeight();
            return new Dimension(w, h + 2);
        }
    }
}
